Questions tagged [clamp]
The clamp tag has no usage guidance.
56
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What is this wire-to-board connector?
For my project I want to use the circuit board of a SRAM Eagle AXS controller.
But I can’t figure out which kind of connectors they used for this. The male connector is 4 mm wide.
Maybe someone has ...
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Few hundred mV clamping
I have a signal that's output from a summing amplifier that can change between 200mV to 500mV. I would like to clamp this signal to 350 mV. That's to say that the output of clamping needs to vary as ...
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Can a single CT Clamp go to 2 energy meters?
I have a Split Core CT CTSA016 - 100A/50mA Yuanxing CT Clamp(Datasheet is here) around my mains - and it is feeding into my Solar Inverter.
I have just purchased a Shelly EM 2 Channel WiFi energy ...
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Equivalent voltage source
I have the following circuit (see picture 1) where the switch \$ 0 - 1 - 2 \$ is in the "state" \$ 0 - 2\$. The values are \$ R_1 = 20~\Omega \$ , \$ R_2 = 30~\Omega \$, \$ R_3 = 10~\Omega \...
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How can I clamp the voltage precisely from the back EMF of a brushed DC motor?
I am using DRV8412DDWR in a medical product, where we are driving two DC motors (graphite brushed) bidirectional using PWM.
In our application, we have to suddenly stop the motor. When we do that, we ...
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Burning of Resistor in the Clamp Circuit of an SMPS
This circuit has been designed and optimised. When implementing on PCB R3 resistor is burning up. Any reasons or suggestions for this to happen? Circuit is stable and safe when supplied with 190V and ...
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ESD Voltage for diode - Positive and negative transients
While selecting ESD protection diodes for, say, ethernet or usb datalines, we usually select the clamping voltage of the diode more than the working voltage of the signal lines and lesser than the ...
user220456
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How to clamp a non-inverting op-amp configuration
I want to clamp a signal to positive voltages. Below is shown how clamping works in an inverting configuration. Is it possible to clamp in a non-inverting configuration without using a second op-amp (...
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How to create an extensible electrical connection with a small form factor?
I have a hard time finding a product that suits my needs, and I am wondering if it exists.
I would like to create electrical connections, eight times 100 VAC, i.e. 16 connectors, and I would like to ...
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Proper burden resistor CT clamp
I'm trying to figure out what the proper burden resistor I should use, but the information I'm reading from OpenEnergyMonitor answer for the proper resistor values doesn't match what I was expecting.
...
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Why is the polarization of the capacitor flipped in this diagram?
As far as I know, the vertical line of the polar capacitor symbol represents the positive side. In this diagram, it is somehow is flipped.
The output voltage does not make any sense to me, either.
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What device could be used to clamp a 0-10 VDC output from a pot to a lower VDC
We have an outdated machine where software along with most everything else, is obsolete. I am looking for a way, to take the 0-10 VDC output from a potentiometer, which is used as a reference for ...
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EMC/EMI Testing EN61000-4-6 current clamp vs EM-clamp
I have a question regarding the Conducted Immunity Test (EN 61000-4-6)
In the standard it is discussed that the preferred method for injection is CDN, but when that is not available one can choose ...
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What should be the clamping voltage specification for selecting a ESD/TVS diode
I'd like to understand how to select a clamping protection device, say TVS/ESD diodes, for Ethernet/USB lines ?
Like, what should be the current rating and the clamping voltage rating for the ESD ...
user220456
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How to avoid or compensate for reverse biased base-emitter breakdown in this BJT active clamp design?
This active clamp design is elegant and simple, and works well to prevent OUT from exceeding the supply voltage (+15V), but fails when IN is low enough to reverse bias Q1's base-emitter junction ...
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ACF flyback leakage inductor current problem
I try to use Basso's Free SIMPLIS document to run the active clamp flyback, and I try to use math to build the leakage indcuctor current waveform, but I got some problems.
please see the below ...
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Can I measure multiple wires (same current direction) with a clamp meter?
I have two wires that have current going in the same direction. Can I put them both between the clamps of a current meter and read the sum?
Edit: I should mention that both wires carry DC current, and ...
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Implementing A/D conversion circuit to a DIY clamp meter
I was looking for cheap clamp meter projects and found this one: DC non invasive current clamp for oscilloscope DIY.
After reading about this project, I noticed that it had a BNC output to read values ...
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Finding DC saturation behavior of clamp ferrites
While some chip ferrite datasheets specify maximum current and DC saturation behavior, it seems like many clamp ferrites omit both maximum current specification (which arguably is less critical) but ...
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Clamp output voltage from DAC
Hi all my analog friends! I have what is probably a very simple problem and I am just overthinking it--but when I work in the analog world, I always feel like I'm missing something. My problem is ...
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Is AC current clamp meter accuracy affected by the inner wire curving around the outside?
I have a SCT013-030 current clamp sensor I plan to use to read out the power usage of a mains AC load. It works by wrapping around one of the AC strands of wire to measure the magnetic field.
The one ...
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Working of a clamper circuit
I was reading about the clamper circuit on wikipedia and found this below image for a positive clamper circuit.
My question is
During the positive (Rising/increasing portion) half of the input AC ...
user220456
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How to prevent voltage spike on Arduino digital pin?
I'm trying to read the state of a switch with an Arduino. The switch is being pushed each time a garage door opens or closes, and is located about 2 meters away from the Arduino. The cables connecting ...
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What are the disadvantages of using an adder instead of a clamper?
I must use an offset an AC signal to measure through ADC. The traditional way or most of the resources point me to use the following clamper circuit:
However, I also see that the following adder ...
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Generating a reference voltage of 1.65V (half of 3.3V)
I am trying to measure an AC voltage using an ADC. However, the ADCs I know only measure the positive voltage. Hence, I am thinking of converting the AD to DC with an offset using the following ...
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clamping the amplitude of a wave to certain level
I'm trying to prevent a wave form from exceeding 10V.p.p.
I tried various things, but ... what the correct way to do it?
this clamps a 11V signal to +/- 900 mV ... and converts a triangle to square.
...
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Choosing the clamp capacitor of active clamp forward
Does anyone know how to choose the Ccl value? Could you give me some suggestions?
I read these Onsemi and TI documents. The formula of Ccl are the same. I have some question about these two ...
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Can I build, or is there such a thing as an AC clamp multimeter which does NOT require a line splitter?
I am not an electrician.
I need to verify the power consumption (watts) of some home equipment (on 120V or 220V) without disconnecting them or splicing the wires.
I would love to be able to walk to ...
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Connect 2mm copper wires electrically for 36kHz
I want to build a indoor non-moving Faraday cage against 36kHz electric fields with a 2mm diameter copper wire.
I will have several T-junctions where there is a running wire and an end of a wire comes ...
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Clamp meter readings
I have a Uni-t UT210e clamp meter.
I noticed that when measuring AC current, the reading varies if I move the wire inside the clamp. The measured value displayed on the meter is higher when the wire ...
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How to build an "instantaneous" clamper circuit [closed]
I am asked to clamp a signal 5sin(ωt) V with frequency of 1 kHz to a DC level of 2 V and -4 V. I already built circuits that can do that. But my professor says that the graphs should be exactly like ...
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TVS with low Vclamp margin
Thanks for your support in this forum.
Currently I have a couple of PCB that I need to provide a double input power supply and transient protection.
The specs for this couple of PCB are Vin= 9 to 17....
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How do I create a secure clamping circuit?
Clamping is good for transients, e.g voltage peaks. But two issues with clamping is that if you have a linear voltage regulator attached to 3.3v and 3.3v is the voltage regulator output, then that ...
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Understanding input bias current in operational amplifier
In order to prevent overvoltages on my arduino voltmeter (more than 20v) I decide to add a protection circuit.
As i show in the image i use a AD8605 precision op-amp for the purpose.
(https://www....
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Measuring RMS power output from audio amplifier channel
I am looking for a simple way for getting the RMS power output of an amplifier channel set to some arbitrary gain. I want this in order to find the maximum level I can safely set the amplifier at for ...
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Clamper Circuit Without A Resistor Analysis
simulate this circuit – Schematic created using CircuitLab
We were given this clamping circuit and were tasked to plot Vc and Vout for varying input. The only given quantities are the forward ...
user263783
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What's the official name for this metal glue clamp for internal wires?
I'm tasked with making a few new pieces of eqipment based on an existing one. This piece uses a few clamps like below to hold wires (usually a few at a time) connecting individual components inside ...
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RCD "Clamp/Snubber"
I am attempting to figure out this "RCD Snubber" as seen below:
The Eval Sheet says "The resistor capacitor diode (RCD) snubber for the two
synchronous rectifiers consists of R3, C29, and D4 for one ...
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Identify the Maximum ESD Clamp Voltage on a circuit
This is with regard to a series of my ESD and Inrush Related questions.
My circuit :
The Node A goes to two other circuits like below :
AND
Now, I apply an ESD pulse of say 8kV/330pF, the ...
user220456
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Precision voltage clamping 0V to +5V with +/-12V input
I'm looking for an opamp "voltage clamping" circuit with a +/-12V input and a 0/+5V output.
I mean :
When input < 0V = output stays at 0V
When 0V < input < +5V = output 0 to +5V
When input > ...
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Clamping circuit output dependence on load resistance
I constructed an unbiased positive clamping circuit with C1 capacitor = 1 uF and load resistances R1 of 100 Ω or 100 kΩ. The ...
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How to clamp opamp output to +-12v when supply is +-15v
I have the following circuit. It's purpose is to take a 0-3.3v signal from an MCU and provide a square, -12v to 12v wave across R3, R4 and either R5 or R6. The idea is to read +-9v when only R4 is ...
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Multi-Conductor DC Clamp Meter
Does a multi-conductor DC clamp meter exist? Possibly using hall effect sensors in a specific orientation?
I typically work with 24-28V DC solenoids valves & pressure transducers with 2 and 4-...
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Proper way of connecting wires to pins on polymer films
What is the proper way to connect wires to contacts from a thin semitransparent "plastic" foil (see images). There are slightly different types; the first one with the 4 pins in a row is the more ...
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TVS Array Clamping With IO Less than Standoff Voltage
I have 2 IO lines one at +3.000V and the other at -3.000V. They do not turn on simultaneously. Both Voltage levels are off a precision <1%LDO
Both lines are connected to a bidirectinoal TVS (...
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I am measuring a 9W LED with a clamp on ammeter. Why does it only draw 7.62W?
I bought a UNI T UT210E true rms multimeter.
I measured the current of 9 W LED lamp. It shows 0.033A. For the power I get \$0.033 A \cdot 220 V = 7.26 W\$ only.
...
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simple clamp circuit resistor calculation
Hello guys i want to calculate the resistor R in this circuit.Can anybody help me?
The value of zener diode(VZ)=4.8 volt.
well i try to simplify it
My question is is my solution is right??If not ...
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TL431 / TLV431 supercapacitor voltage clamping circuit
I have a question regarding a circuit I've been working on for some time. The circuit is based around existing supercapacitor protection modules and uses a TL431 (actually a TLV431 lower power ...
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Clamp a D/A to prevent output below 0V
I am using a USB D/A converter to drive a high-voltage op-amp with a signal between 0 and 3V at 10 kHz. The D/A I am using is capable of outputting between -10 and +10 and unfortunately seems to ...
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Why is a clamp meter unaffected by nearby wires?
I understand a clamp meter works by measuring the magnetic field generated by current flowing through a wire.
It's well known that clamping 2 wires carrying the same current in opposite directions ...
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